Major plugin refactor and cleanup.

Switched to POCO library for unified platform/library interface.
Deprecated the external module API. It was creating more problems than solving.
Removed most built-in libraries in favor of system libraries for easier maintenance.
Cleaned and secured code with help from static analyzers.

vendor/POCO/contrib/poco-doc.pl

@@ -0,0 +1,47 @@
+#!/usr/bin/perl -wi
+#
+# poco-doc.pl
+#
+# This script, when run on a POCO header file, moves the documentation
+# for classes, methods, etc above their declarations, making the code
+# suitable for running through Doxygen, etc.
+#
+# Author: Caleb Epstein <caleb.epstein@gmail.com>
+#
+# $Id$
+
+use strict;
+use warnings;
+
+my @COMMENT;
+my @DECL;
+
+my $comment_re = qr@^\s*//@;
+
+while (<>) {
+   if ((/^\s*(template|class|enum)/ and not /\;\s*$/) or
+       (/[\(\)](\s*const)?\;$/ and $_ !~ $comment_re)) {
+      if (scalar @DECL) {
+         print join ("", @COMMENT) if scalar @COMMENT;
+         print join ("", @DECL);
+      }
+      @DECL = ($_);
+      @COMMENT = ();
+      next;
+   } elsif (m@^\s*///@ and scalar @DECL) {
+      push (@COMMENT, $_);
+   } else {
+      if (scalar @DECL) {
+         print join ("", @COMMENT) if scalar @COMMENT;
+         print join ("", @DECL);
+         @COMMENT = @DECL = ();
+      }
+
+      # Handle in-line documentation of enum values
+      if (m@^\s*[^/]@ and m@/// @) {
+         s@/// @///< @;
+      }
+      print;
+   }
+}
+